.big{
    width: 100%;
    padding: 0 0.3rem;
}
.big h3{
    color: #333333;
    font-size: 0.36rem;
    margin-top: 0.5rem;
}
#sr{
    height: 0.72rem;
    margin: 0.5rem 0;
    border-radius: 0.1rem;
    border: none;
}
#qd{
    width: 4.7rem;
    height: 0.8rem;
    line-height: 0.8rem;
    padding: 0;
    border: none;
    border-radius: 0.1rem;
    background-color: rgba(255,167,61,1);
    color: #ffffff;
    font-size: 0.36rem;
    -webkit-transition-duration: 0s;
    -moz-transition-duration: 0s;
    -ms-transition-duration: 0s;
    -o-transition-duration: 0s;
    transition-duration: 0s;
}
#qd:hover{
    background-color: rgba(255,167,61,0.5);
}
.mui-backdrop {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 998;
    background-color: rgba(0,0,0,.8);
    display: none;
}
.kuang{
    width: 4rem;
    height: 3.4rem;
    background-color: #fff;
    margin: 4.12rem auto 0;
    text-align: center;
    overflow: hidden;
    border-radius: 0.2rem;
}
.kuang p{
    margin-top: 0.9rem;
    font-size: 0.28rem;
    color: #000000;
    font-weight: 700;
}
.kuang a{
    margin-top: 1rem;
    display: inline-block;
    font-size: 0.32rem;
    width: 80%;
    padding-top: 0.15rem;
    padding-bottom: 0.15rem;
    background-color: #ff6b3d;
    color: #ffffff;
    border-radius: 0.1rem;
}
.kuang a:hover{
    color: #fff;
    background-color: rgba(255,167,61,0.5);
}
.mui-backdrop1{
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 998;
    background-color: rgba(0,0,0,.4);
    display: none;
}